Table 2.

Runtime Performance (in seconds) of xpehh and selscan for Calculating Unstandardized XPEHH for Various Data Sets.

Data Set	xpehh	selscan
		Threads $=1$	2	4	8	16
XP250	11,113	287	141	71	38	25
XP500	57,006	766	403	194	104	67
XP1000	$>100\text{,}000$	2,037	1,018	515	274	180
XP2000	$>100\text{,}000$	5,683	2,798	1,471	763	493
CEUYRI22	37,271	578	291	150	78	52

Note.—Calculations running over 100,000 s were aborted.